Transparency in XNA-4 primitives

Posted by Shashwat on Game Development See other posts from Game Development or by Shashwat
Published on 2014-05-31T11:12:15Z Indexed on 2014/05/31 16:06 UTC
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I'm using XNA 4 with Visual Studio 2010. I'm trying to create a simple 3D world with walls and doors in which the user to free to roam around.

A wall is just a rectangle which is currently being rendered with four vertices using triangle strips. But to create a door, I'd have to split it into three rectangles as shown in the figure.

enter image description here

Four quadrilaterals if I want to have the following door-style

enter image description here

It will become more complex to have multiple doors on the same wall or if I have windows.

Is there any shorter way to handle this? I am looking for something that will just make the wall transparent wherever I want.

I found a solution but facing a problem here

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